Calling a method of another object requires which item?

A(n) ____________________ signals an end to an email message using words such as "Thank you" or "Regards."

Fill in the blank(s) with the appropriate word(s).

Here is a recursive function that is supposed to return the factorial. Identify the line(s) with the logical error(s). Hint: This compiles and runs, and it computes something. What is it?

``` int fact( int n ) //a { int f = 1; //b if ( 0 == n || 1 == n ) //c return f; //d else { f = fact(n - 1); //f f = (n-1) * f; //g return f; //h } } ```